Error
Error Code:
4146
MySQL Error 4146: Incomplete Data Import
Description
This error occurs when MySQL's bulk parser encounters an unexpected end of the input data stream while processing a file, typically during `LOAD DATA INFILE` operations. It indicates that the parser reached the end of the file before all expected data for rows or columns could be processed, resulting in missing data for some fields.
Error Message
Unexpected end of input found at row %ld in file '%s'. Data for some columns is missing.
Known Causes
3 known causesTruncated or Corrupted File
The input data file being imported is incomplete or has become corrupted, causing the parser to reach its physical end before all expected data is read.
Mismatched Format Delimiters
The `LOAD DATA INFILE` statement specifies line or field terminators that do not precisely match the actual delimiters used within the input file, leading to misinterpretation of record boundaries.
Malformed Last Record
The final record in the input file is malformed, lacks a proper line terminator, or does not contain the expected number of fields, causing the parser to report an 'unexpected end' prematurely.
Solutions
Coming SoonDetailed step-by-step solutions for this error are being prepared. In the meantime, try these general troubleshooting tips:
General Troubleshooting Tips
- Check the error message carefully for specific details
- Review recent changes that might have caused the error
- Search for the exact error code in the official documentation
- Check log files for additional context
- Try restarting the application or service